EP0756571A1 - Pneumatic bulk material slug transport process and device with attenuated shocks - Google Patents
Pneumatic bulk material slug transport process and device with attenuated shocksInfo
- Publication number
- EP0756571A1 EP0756571A1 EP96901235A EP96901235A EP0756571A1 EP 0756571 A1 EP0756571 A1 EP 0756571A1 EP 96901235 A EP96901235 A EP 96901235A EP 96901235 A EP96901235 A EP 96901235A EP 0756571 A1 EP0756571 A1 EP 0756571A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- plugs
- pipeline
- medium
- reduced
- bulk material
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000000034 method Methods 0.000 title claims abstract description 21
- 239000013590 bulk material Substances 0.000 title claims description 20
- 230000035939 shock Effects 0.000 title description 2
- 230000002238 attenuated effect Effects 0.000 title 1
- 238000011144 upstream manufacturing Methods 0.000 claims abstract description 6
- 239000000463 material Substances 0.000 claims abstract 9
- 238000007872 degassing Methods 0.000 claims description 6
- 239000000126 substance Substances 0.000 claims 2
- 230000003111 delayed effect Effects 0.000 claims 1
- 241000237858 Gastropoda Species 0.000 abstract 5
- 239000006163 transport media Substances 0.000 abstract 4
- 238000007493 shaping process Methods 0.000 abstract 1
- 230000001133 acceleration Effects 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 2
- 230000000712 assembly Effects 0.000 description 2
- 238000000429 assembly Methods 0.000 description 2
- 230000001419 dependent effect Effects 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 206010038743 Restlessness Diseases 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G53/00—Conveying materials in bulk through troughs, pipes or tubes by floating the materials or by flow of gas, liquid or foam
- B65G53/34—Details
- B65G53/52—Adaptations of pipes or tubes
- B65G53/525—Adaptations of pipes or tubes for conveyance in plug-form
Definitions
- the invention relates to a method for the pneumatic slow conveyance, in particular for the plugging, of bulk goods according to the preamble of claim 1, and to a device for carrying out the method according to the preamble of claim 9.
- Thrust conveying methods of high bulk material concentrations are known in which the bulk material is conveyed through a pipeline in the form of a closed bulk material strand or in the form of discrete plugs (plug requirement). While the plug demand or slow delivery has proven itself well for small to medium pipe diameters and short to medium line lengths, considerable problems can occur with larger delivery distances and / or large pipe diameters depending on the bulk material properties.
- Fig. 1 bulk plugs 1 are pneumatically conveyed by means of a compressible conveying medium 2 at a distance from each other through a, for example, 200 m long conveying line up to its horizontally running end region 12a.
- the bulk material plugs 1 are introduced there via a bend 3 or a deflecting extension piece into a preferably circular cylindrical tube extension 4 without impact or with little impact, because they lose their cohesion due to the lack of accumulation force on the strand la in the downward movement and the lack of friction on the tube wall.
- the bulk material collects in a transition piece 5 and / or in a deflection piece 6, which is preferably designed as a bend with a small radius.
- a damaging height which fluctuates between the levels H and H 2 can be achieved by preferably setting the control elements mentioned once.
- the minimum level H. avoids expansion penetrating upwards through the pipeline, and the maximum level H 2 prevents an excessively high pressure rise and thus blockage.
- a vertical pipe section 12b adjoins the deflection piece 6. It is thereby achieved that smaller plugs 1 'are formed at a smaller distance from one another downstream of the deflection piece 6.
- the generation and maintenance of a constant bulk material buffer level within the limits H. and H 2 or the attachment of the slide 7 and / or the degassing valve 8 may be dispensed with, because after the primary deflection In the vertical direction, smaller plugs 1 'with a smaller plug spacing are created, so that both the pressure differences compared to the external pressure and the volumes 2' of compressed delivery medium between successive plugs are reduced. Since this also reduces the total amount 2 'of compressed delivery medium present between successive plugs and its absolute pressure, much less energy is expended at the end of the pipeline 10 when this compressed delivery medium 2 expands. Free pouring as if the bulk plug 1 would leave the end region 12a, for example on the bend 3.
- the degassing valve 8 can also be used to relax part of the space volume from the tube extension 4. Then, in addition to the plug forming described above, there is a reduction in the speed of the conveying medium and thus also in the plug speed in the pipe section after the converter. At the same time, the reduction in the gas and plug speed in this area contributes to a further increase in the dwell time of the partial plugs and thus the reduction in the tendency of the expansion to break through from the area 12b to the area 12a. Another possibility for reducing the flow rate of the conveying medium is to enlarge the diameter of the vertical pipe section 12b. When the reduced bulk plug 1 'emerges into the receiving vessel 11, a likewise reduced volume 2' of compressed conveying medium relaxes, which extends at the moment the plug closes to the following plug V.
- the connecting piece 8a of the degassing piece 8 can also be connected to the vertical line by a bypass line 8b.
- the tube extension 4 is shown as a cylindrical pot with a central axis inclined by approximately 45 ° to the vertical.
- a vessel with a vertical central axis and funnel-shaped bottom can also be used instead.
- another throttle device e.g. a throttle valve can be used, e.g. is directly subordinate to the aforementioned vessel and controls or regulates the gap width of a throttle gap so that the fill level of the vessel remains between a minimum and a maximum level.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Air Transport Of Granular Materials (AREA)
- Refuse Collection And Transfer (AREA)
Abstract
Description
Claims
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19503383A DE19503383C2 (en) | 1995-02-02 | 1995-02-02 | Process for the shock-reduced pneumatic plug conveying of bulk goods and device for carrying out the process |
DE19503383 | 1995-02-02 | ||
PCT/DE1996/000173 WO1996023717A1 (en) | 1995-02-02 | 1996-02-01 | Pneumatic bulk material slug transport process and device with attenuated shocks |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0756571A1 true EP0756571A1 (en) | 1997-02-05 |
EP0756571B1 EP0756571B1 (en) | 1998-10-28 |
Family
ID=7753002
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP96901235A Revoked EP0756571B1 (en) | 1995-02-02 | 1996-02-01 | Pneumatic bulk material slug transport process and device with attenuated shocks |
Country Status (11)
Country | Link |
---|---|
US (1) | US5791829A (en) |
EP (1) | EP0756571B1 (en) |
JP (1) | JP3084068B2 (en) |
CN (1) | CN1058244C (en) |
BR (1) | BR9605298A (en) |
CA (1) | CA2185885A1 (en) |
DE (2) | DE19503383C2 (en) |
ES (1) | ES2138893B1 (en) |
GB (1) | GB2301076B (en) |
TW (1) | TW326024B (en) |
WO (1) | WO1996023717A1 (en) |
Families Citing this family (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19648932C2 (en) * | 1996-11-26 | 1999-11-11 | Motan Fuller Verfahrenstechnik | Method and device for the conveyance of plugs in a flow stream |
DE19930281A1 (en) | 1999-07-01 | 2001-01-11 | Waeschle Gmbh | Method and device for the pneumatic conveying of bulk material |
JP2003506290A (en) | 1999-07-31 | 2003-02-18 | ヴェーシェル ゲゼルシャフト ミット ベシュレンクテル ハフツング | Method and apparatus for pneumatically transporting bulk material |
DE10024951C2 (en) * | 2000-05-22 | 2002-04-18 | Coperion Waeschle Gmbh & Co Kg | Pipe holder for conveying lines, especially in pneumatic slow conveying systems |
GB0512998D0 (en) * | 2005-06-27 | 2005-08-03 | Inbulk Technologies Ltd | Pneumatic conveying velocity control device |
AT508720B1 (en) * | 2009-08-20 | 2012-05-15 | Wittmann Kunststoffgeraete | METHOD FOR THE AUTOMATIC LOADING OF A CONVEYOR PIPE WITH BULK GOODS |
DE102010064081A1 (en) | 2010-09-09 | 2012-03-15 | Coperion Gmbh | Stationary pneumatic bulk material conveying device for loading and / or unloading a ship |
US9745149B2 (en) * | 2015-03-19 | 2017-08-29 | Ipeg, Inc. | Material delivery system |
DE202018101651U1 (en) * | 2018-03-16 | 2018-04-09 | Seepex Gmbh | Plant for conveying pasty material |
CN111248491A (en) * | 2020-03-23 | 2020-06-09 | 红云红河烟草(集团)有限责任公司 | Prevent cigarette filter rod and damage collection device |
CN115043217B (en) * | 2022-08-12 | 2022-10-28 | 徐州矿达机电科技有限公司 | Flexible circuit board element transportation device |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3380780A (en) * | 1965-12-23 | 1968-04-30 | Kenneth M. Allen | Pneumatic conveying systems |
DE2219199B2 (en) * | 1972-04-20 | 1977-12-29 | Wibau - Maschinenfabrik Hartmann Ag, 6050 Offenbach | Bulk material pneumatic conveyor - has valves in control pipe matching pressure drop to that in main pipe |
IT1038174B (en) * | 1975-05-16 | 1979-11-20 | Rusterholz Otto | VALVE FOR MONATION AND RETURN DEVICE FOR AN IMPULSIVE WAVE PNEUMATIC TRANSPORT SYSTEM |
DE3506679A1 (en) * | 1985-02-26 | 1986-09-04 | Hölter, Heinz, Dipl.-Ing., 4390 Gladbeck | Air-expansion device for compressed-air delivery equipment in underground mining |
JP2512449B2 (en) * | 1986-10-21 | 1996-07-03 | 協和醗酵工業株式会社 | High-concentration pneumatic transportation method and apparatus for granular material |
JPH0829825B2 (en) * | 1987-06-22 | 1996-03-27 | 協和醗酵工業株式会社 | High-concentration pneumatic transportation method and apparatus for granular material |
KR900700371A (en) * | 1988-04-01 | 1990-08-13 | 가또오 미끼오 | High concentration energy transport device of powder |
SE462798B (en) * | 1989-01-16 | 1990-09-03 | Abb Stal Ab | ROOMS FOR THE TRANSPORTER IN A PNEUMATIC TRANSPORT SYSTEM |
DE4038150A1 (en) * | 1990-02-22 | 1991-08-29 | Truetzschler & Co | DEVICE FOR PNEUMATICALLY FEEDING AT LEAST ONE FIBER PROCESSING MACHINE, e.g. CARD |
US5240355A (en) * | 1992-05-22 | 1993-08-31 | Nol-Tec Systems, Inc. | Dense phase transporter pneumatic conveying system |
GB9303384D0 (en) * | 1993-02-19 | 1993-04-07 | Molins Plc | Pneumatic conveying system for rod-like articles |
JP2590699B2 (en) * | 1993-08-19 | 1997-03-12 | 日本電気株式会社 | Online ticketing system |
-
1995
- 1995-02-02 DE DE19503383A patent/DE19503383C2/en not_active Revoked
-
1996
- 1996-02-01 EP EP96901235A patent/EP0756571B1/en not_active Revoked
- 1996-02-01 BR BR9605298A patent/BR9605298A/en not_active Application Discontinuation
- 1996-02-01 GB GB9617236A patent/GB2301076B/en not_active Expired - Fee Related
- 1996-02-01 DE DE59600728T patent/DE59600728D1/en not_active Expired - Fee Related
- 1996-02-01 CN CN96190052A patent/CN1058244C/en not_active Expired - Fee Related
- 1996-02-01 JP JP08523174A patent/JP3084068B2/en not_active Expired - Fee Related
- 1996-02-01 CA CA002185885A patent/CA2185885A1/en not_active Abandoned
- 1996-02-01 US US08/704,691 patent/US5791829A/en not_active Expired - Fee Related
- 1996-02-01 ES ES009650021A patent/ES2138893B1/en not_active Expired - Fee Related
- 1996-02-01 WO PCT/DE1996/000173 patent/WO1996023717A1/en not_active IP Right Cessation
- 1996-02-02 TW TW085101325A patent/TW326024B/en active
Non-Patent Citations (1)
Title |
---|
See references of WO9623717A1 * |
Also Published As
Publication number | Publication date |
---|---|
JP3084068B2 (en) | 2000-09-04 |
JPH09511208A (en) | 1997-11-11 |
WO1996023717A1 (en) | 1996-08-08 |
DE59600728D1 (en) | 1998-12-03 |
CA2185885A1 (en) | 1996-08-08 |
ES2138893B1 (en) | 2000-09-16 |
DE19503383A1 (en) | 1996-08-08 |
GB2301076A (en) | 1996-11-27 |
EP0756571B1 (en) | 1998-10-28 |
TW326024B (en) | 1998-02-01 |
ES2138893A1 (en) | 2000-01-16 |
US5791829A (en) | 1998-08-11 |
DE19503383C2 (en) | 1998-05-14 |
GB2301076B (en) | 1999-04-28 |
CN1145611A (en) | 1997-03-19 |
GB9617236D0 (en) | 1996-09-25 |
CN1058244C (en) | 2000-11-08 |
BR9605298A (en) | 1997-09-16 |
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